20210012120 has 32 divisors (see below), whose sum is σ = 45534629520. Its totient is φ = 8072964480.

The previous prime is 20210012059. The next prime is 20210012129. The reversal of 20210012120 is 2121001202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210012129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315326 + ... + 373965.

Almost surely, 2^20210012120 is an apocalyptic number.

20210012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210012120 is an abundant number, since it is smaller than the sum of its proper divisors (25324617400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210012120 is a wasteful number, since it uses less digits than its factorization.

20210012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690035 (or 690031 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20210012120 its reverse (2121001202), we get a palindrome (22331013322).

The spelling of 20210012120 in words is "twenty billion, two hundred ten million, twelve thousand, one hundred twenty".